[Devel] Re: Loadbalancing using Path-HF with NAT-Support

[Juha Heinanen]

Andreas Granig writes:

 > Note, that nat-pinging is not properly supported by this setup (as noted 
 > before), because UACs have to be pinged with the source-address set to 
 > the address of the LB. This could either be accomplished by using OPTION 
 > for nat-ping and route that request according to the stored Path header 
 > (will put a lot of unnecessary load to the LB), or let the LB natping 
 > the UACs (also unnecessary load for the LB, and LB would require access 
 > to usrloc), or use an external application which spoofs the LB address 
 > and directly fetches the received-address from the location table (used 
 > in our setup and seems to be the most flexible and scalable way for
 > me).

andy,

why would you need an external application for pinging?  isn't is
possible to modify nathelper module to use spoofed source address?

-- juha